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Finding the Fourth Proportional to 181,776.90, 250,787.16 and 105,254.22

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Solution

The fourth proportional to 181,776.90, 250,787.16 and 105,254.22 is: 145,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,776.90 : 250,787.16 = 105,254.22 : x
  2. Step 2: Convert to fraction form
    181,776.90/250,787.16 = 105,254.22/x
  3. Step 3: Cross multiply
    181,776.90x = 250,787.16 × 105,254.22
  4. Step 4: Simplify right side
    181,776.90x = 26,396,406,911.82
  5. Step 5: Solve for x
    x = 26,396,406,911.82/181,776.90
  6. Step 6: Final answer
    x = 145,213.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.